Metal-bound joint or lock straight-edge.



W. FASCHALL.

METAL BOUND JOINT OR LOCK STRAIGHT EDGE.

APPUCMION FILED SEPT. 29. m i.

1,276,565, Patented Aug. 20, 1918.

"W n; i"aflflazl;@ hu u U O? O O lfin i d a?! v w 9- O if ff if f? i? n1? 52% if 4 a WILLIAM PASCHALL, OF BIRMINGHAM, ALABAMA.

METAL-BOUND JOINT OR LOCK STRAIGHT-EDGE.

Specification of Letters Patent.

. Patented Aug. 20, 1918.

Application filed September 29, 1917. Serial No. 194,021.

To all whom it may concern:

Be it known that I, WILLIAM PASCHALL, a citizen of the United States,residing at Birmingham, in the county of Jefi'erson'and State ofAlabama, have invented a new and useful Metal-Bound Joint or LockStraight-Edge, of which the following is a specification.

The device forming the subject matter of this application is a straightedge, and one object of the invention is to provide novel means forholding the two members of the sirlaight edge together, end to end,detacha y.

Another object of the invention is to provide novel means forreinforcing the straight edge.

It is within the province of the disclosure to improve generally and toenhance the utility of devices of that character to which the presentinvention appertains.

With the above and other objects in View, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the drawings:

Figure l is a plan showing one side of the straight edge, one of theconstituent strips of one of the members of the straight edge beingremoved;

Fig. 2 is a plan showing the opposite side of the straight edge notdepicted in Fig. 1;

Fig. 3 is a perspectiveshowing one of the anchors;

Fig. i is a perspective showing the other anchor;

Fig. 5 is a transverse section taken approximately on the line 55 ofFig. 2;

Fig. 6 is a longitudinal section taken approximately on the line 66 ofFig. 2;

Fig. 7 is a plan showing a portion of one of the edge bands;

Fig. 8 is a plan showing a slightly modified form of the invention.

In that form of the invention delineated in Figs. 1 to 7 inclusive, thestraight edge is shown as comprising a pair of members 1 and 2. Themembers 1 and 2 of the straight edge comprise strips 3 and e which maybe united by cement 5 or in any other suitable manner. The strips 4: areprovided at their meeting ends with notches 6, and. a notch 39 is formedin the strip 3 of the mem ber 1. A block 7 of approximately triangularform fits in the notch 6 of the strip a of the member 2, and includes anend flange 8 against which strips 3 and 4 of the member 2 abut. A plate9 is attached by rivets 10 to the block 7 and lies between the strips 3and 4; of the member 2. The plate 9 may be attached bv rivets 11 to theconstituent strips 3 and a of the member 2. The plate 9 is of taperedform and has anchoring recesses 12 in its edges. A tongue 14. is securedby rivets or otherwise to the end of the plate 9 and, like plate 9, liesbetween the strips 3 and 4: of the member 2. The tongue 14 may be of anydesired length and is provided with anchoring openings 15. A head 16 issecured to plate 9 by means of rivets 17 or otherwise, and projectsthrough a notch 18 in the end flange 8. The head 16 has an opening 19and there is a notch 20 in the block 7 which registers with the opening19. The flange 8 is provided with end projections 21. At its outer end,the head 16 is depressed to form a lug 22. Dowel pins 23 project fromthe flange8. I

The numeral 2% denotes a block resembling the block 7 and seated innotch 6 of the strip 4;. of the member 1. The block 24 is provided withan end flange 25 against which the strips 3 and A of the member 1 abut.The end flange 25 is supplied with terminal projections 41. All opening26 is formed in the end flange 25, the end flange having holes 27adapted to receive the dowel pins 23. A plate 28, corresponding to theplate 9, is attached to the block 24 by means of rivets 29. The plate 28lies between constituent strips 3 and 4 of the member 1, and may besecured thereto by means of rivets 30. A tongue 31, corresponding to thetongue 14:, is attached to the plate 28 and lies between the strips 3and 4 of the member 1. The plate 28 is provided with an opening 32 intowhich projects a bearing 33 formed on the block 2A. A bearing 34: isformed on the block 24: and lies in the opening 26. Into the bearings 33and 34 is threaded a screw 35 having a head 36 provided with holes 37adapted to receive a nail or pin, whereby the screw may be rotated. Apin 38 is inserted through. the screw 35 between the bearings strips ofthe member is have barbs d3. There may be any ntnnber of these barbs. ifdesired, the inner faces of the strips 8 and 4 may be recessed as shownat dd to receive the cement 5, which, coacting with the tongues and thebarbs holds the edge bancs in place. lhe recesses shown at may beomitted if desired.

The edge band 4:0 may be used for binding spirit levels and othermechanical tools.

Channel members are inserted into the ends of strips 3 and t, to holdthe same together.

in Fig. 8, a modified form oi the invention has been shown. In this formof the invention, the blocks d6 correspond to the blocks 7 and H, andare provided with extensions l7, represented in Figs. 3 and i by theplates and 9.

The projections d1 and 21 extend througledge bands d0 and may be rivetedthereon.

In practical operation, members 1 and 2 are broug it together edgewise,the log 22 fitting in the opening and the bearings and 3%, together withthe screw being received in the opening 19 of tee head 16. The dowelpins are received in the holes 27. lhe screw 35 is rotated by means 01"a pin or nail, inserted into the openings 37 in the head 36. i hen thescrew 35 is rotated, the inner end of the screw, bearing against thehead 16 at the end of the opening 19, presses the end flang s 8 andtogether, the projecting portion or the head 16 being received in. theopening 26.

he elements shown in 3 and d may be denominated anchors, for convenienceclaiming the invention. These anchors are shown as composite structuresheld together by rivets, but a skilled mechanic will understand that theanchors may be of one-piece construction, the change necessary toproduce such a detail lying well within the slrill of a mechzmica Havingthus described the invention, what is claimed is:

1. A device of the class described comprising cooperating strips; meansfor connecting the strips together; an edge band applied to the strips;and tongues carried by the edge band and projecting between the strips,the tongues being provided with lateral barbs.

A device or the class described comprising cooperating members; abearing fixedly carried by one member; a pressure device movable in thebearing; and a loop-shaped head carried by the other member and inclosing the bearing and the pressure device, the pressure deviceengaging the head internally to hold said members together by thrustingaction.

3. A device of the class described comprising cooperating members andanchors carried thereby, the anchors including abutting end flanges, oneend flange having an open ing; a head constituting part oi one anchorand extended through the opening, the head having an aperture; a bearingconstituting a part of the other anchor and received in the aperture ofthe head; and a screw threaded into the bearing and engaging the headwithin the contour oi the aperture, to hold the end flanges together.

A device or the character described comprising cooperating members andanchors carried thereby, the anchors including end flanges, the endflange of one anchor having an opening; a loop-shaped head constitutinga part of the other anchor and received in the opening, the head havinga lug; a bearing carried by the first specified anchor and received inthe opening or" the head; and a screw threaded into the bearing a andengaging the head within the contour of the opening to hold the endflanges together, the first specified anchor having a recess wherein thelug of the head is received.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

WILLIAM PASCHAl L.

Witnesses:

l". l. Lnsrnn, Jenn lvl'srmrr.

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